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A warm welcome to the Community @Tonikemp. By sleep pattern you mean the sleep information? If it is, you just need to tap the sleep tile. If you don't see the sleep tile, do the following from your iOS Fitbit app:
1. Open the Fitbit app.
2. Tap Edit in the top-left corner.
3. To hide tiles, uncheck the circle next to the tile you would like to hide.
4. To rearrange tiles, hold and drag the three lines that appear on the right side of the tile.
5. Tap Done.
I hope this helps, let me know the outcome. 
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